Press button and like fastening for use with flexible materials



' A ril 20, 1925.

S. C. HARRIS ON ET. AL

"mass Bu'r Tou AND LIKE 'mswsnms FOR USE WITH FLEXIBLE hummus Filed Dec;15'; 1924 iiiiiiiiiiiilllli; W

Passes Apr. 20, 1926.

SIDNEY CHARLES -HARRISON AND HARPBY ILEsQQF BI-RIVIINGI'IAM; ENGLAND.

PREss BUTTON AND-LIKE FASTENING FORUSE'VJITI-IFLEXIBLE MATERIALs.

/ Application filed December 15, 1924. Serial -l\To. 756,145.

To all whom it may concern:

Be it known that we, SIDNEY CHARLES HARRISON and Han-11v Inns, Britishsubjects, residing at Bradford Street Works, Brad ford Street, in thecity of'Birmingham, England, have invented cert'ain new and usefulImprovements Relating to Press Buttons, and like Fastenings for Use withFlexible Materials, of 'which the following is a Specification.

This'inventionrelates to press buttons and like fastenings foifuse withflesiblefmate- 1'ials,"and liasfor its object to pr'ovi'de an improvedfastening adapted for securing the fabric, leather, orlike portions ofmotor vehicle covers to the body parts" or for any other similarpurpose.

The invention comprises the combination with one part of the fastening,of a hollow rotatable releasing member formed with a pair of transverseslots across which lie a pair of resilient locking pieces adapted toengage a necked or grooved portion on the other part of the fastening,together with means as hereinafter described for preventing displacementof the locking pieces and disconnection of the same from the releasingmember.

In the accompanying sheet of explanatory drawings a n d and and shown,the hollow body of the fasteningcontaining the releasing member andlooking pieces is made up from a pair of sheet metal parts-a and b. Theouter one (a) is flanged around its periphery, and at the periphery anumber of tongue pieces 0, :Z are formed, these being adapted to passthrough the inner part b and the tongue pieces 0 when bent over serve tosecure the two parts together. The tongue pieces (Z on the outer partare made longer and pass through the inner part, as well as the materialas e to which the fastening is to be secured, and also through a backplate f, the

said tongue pieces being bent over to hold the fastening in position.

Through'a centralaperture in the outer part th e hollow-body acylindrical hollow releasing piece '9; is rotatably mounted. Preferablythis is inade with a closed outer end adapted to serveas a knob'orfinger grip. Thejreleasing piece-may be made from sheet metal or fromsolid rod. Across the portion which lies within the' b a se thereleasing piece is formed with a pair of diametrically arrangedtransverse slots-h, and within the base arearrange'd a pair of similarspringlocking pieces 1' for engaging saids'lotsQ Each locking-{piece isfcrmed-by bending a length of hard wire so that a part lies around theinterior of the. peripheral portion of the hollow base and the otherlies across the outside of the releasing piece, the portion engaging aslot in the latter being arranged to project into the interior of thereleasing piece. If desired both locking pieces may be provided bybending a single length of hard wire.

On the inner part b of the base projections j, is, are pressed up intothe interior of the base. Two of them j serve to limit the extent towhich the locking pieces can be separated by the releasing piece, and athird is lies between the adjacent ends of the locking pieces orotherwise engages them to prevent rotation or other displacement.

The fastening co-operates with a shouldered or grooved part Z adapted tobe secured by means of a screwed stem m or otherwise. Vhcn the one partof the fastening is pressed over the head of the other, the lockingpieces first move apart and finally spring together behind the head intothe groove and so secure the parts together. To release the parts thereleasing piece is rotated sufficiently to expand the locking pieces outof engagement with the groove of the other part; the two parts can thenbe separated.

It will be understood that the locking pieces above described serve thedouble function of holding the releasing piece in position and holdingtogether the two parts of the fastenings.

Although the constructional details above described are preferred, theymay be varied to meet different requirements, but in all forms theessential features of the invention are the same.

Having thus described our invention what We claim as new and desire tosecure by Letters Patent is 1. In fastenings of the kind specified, thecombination comprising a two part body, a hollow rotatable releasingmember formed with a pair of transverse slots, resilient locking pieceslying across said slots, a separate grooved or necked complementary partengageable by the said locking pieces, projections formed integrallywith one of the members of the two part body, certain of saidprojections being arranged immediately adjacent the portions of theresilient locking pieces lying across said slots and engageable by saidportions incident to rotary move ment of the releasing member topositively limit the rotary motion of said releasing member.

2. In fastenings of the type specified, the combination comprising ahollow two part body, a hollow rotatable releasing member passing intothe interior of the body through one of the body parts and terminatingat the outer end in a finger piece, the portion of the said releasingmember within the body being formed with a pair of transverse slots,spring locking pieces arranged within and having portions thereofengaged with the body and having other portions in engagement with theslots in the releasing member, a separate grooved or neckedcomplementary fastening part adapted to enter the hollow releasingmember and engageable by the locking pieces, and a projection on theother part of the body engaged between the ends of the first mentionedportions of the locking pieces for preventing displacement of thelocking pieces.

A fastening as claimed in claim 2 characterized in that other of saidprojections are arranged at diametrically opposed points of thereleasing member and contiguous to the portions of the locking pieceslying in the slots in the releasing member to limit rotation of thelatter.

In testimony whereof we have signed our names to this specification.

SIDNEY CHARLES HARRISON. HARRY ILES.

